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68472235584 = 2632109032
BaseRepresentation
bin111111110001010000…
…110110011001000000
320112201221120222002100
4333301100312121000
52110212343014314
651242233350400
74642543253664
oct776120663100
9215657528070
1068472235584
1127047879055
121132b268400
1365c2a83b3c
143457b668a4
151bab42ec09
hexff1436640

68472235584 has 63 divisors (see below), whose sum is σ = 196281302763. Its totient is φ = 22821985152.

The previous prime is 68472235541. The next prime is 68472235613. The reversal of 68472235584 is 48553227486.

The square root of 68472235584 is 261672.

It is a perfect power (a square), and thus also a powerful number.

68472235584 is a `hidden beast` number, since 6 + 8 + 4 + 7 + 22 + 35 + 584 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 68472235584.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6274677 + ... + 6285579.

Almost surely, 268472235584 is an apocalyptic number.

68472235584 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

68472235584 is the 261672-nd square number.

It is an amenable number.

68472235584 is an abundant number, since it is smaller than the sum of its proper divisors (127809067179).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68472235584 is an frugal number, since it uses more digits than its factorization.

68472235584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21824 (or 10908 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 54.

The spelling of 68472235584 in words is "sixty-eight billion, four hundred seventy-two million, two hundred thirty-five thousand, five hundred eighty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 10903 21806 32709 43612 65418 87224 98127 130836 174448 196254 261672 348896 392508 523344 697792 785016 1046688 1570032 2093376 3140064 6280128 118875409 237750818 356626227 475501636 713252454 951003272 1069878681 1426504908 1902006544 2139757362 2853009816 3804013088 4279514724 5706019632 7608026176 8559029448 11412039264 17118058896 22824078528 34236117792 68472235584